Stopper device for grinding stone cover of grinder

a technology of stopper device and grinder, which is applied in the direction of metal-working equipment, portable grinding machines, manufacturing tools, etc., can solve the problems of affecting usability, affecting the efficiency of operation, and affecting the function of dust scattering prevention, so as to prevent dust from scattering, improve operation efficiency, and effectively prevent the effect of dust scattering towards the user
US8403730B2Active Publication Date: 2013-03-26MAKITA CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
MAKITA CORP
Publication Date
2013-03-26

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Abstract

A grinder can include a stopper projection provided to a grinding stone cover and position a stopper abutting portion on a side of a gear housing in order to restrict a position adjustable range through abutment of the stopper projection to the stopper abutting portion in a position where the grinding stone cover has rotated in a rotational direction of the grinding stone by a set angle.
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Description

TECHNICAL FIELD

[0001] The present invention relates to a stopper device for a grinding stone cover of a hand-held grinder, which is used, for example, for grinding materials such as stones.BACKGROUND ART

[0002] A hand-held grinder has a main body portion having a substantially cylindrical body shape that receives an electric motor therein, the main body portion is used as a grip portion, which is held by a user for a grinding operation, etc. A speed reduction portion is provided at a front portion of the main body portion for reducing the rotational output of the electric motor by a bevel gear train and outputting it in a perpendicular direction. For this purpose, a spindle on an output side of the speed reduction portion extends perpendicular to a motor shaft. A circular grinding stone (wheel) is attached to the spindle. In general, a substantially semi-circumferential range on a rear side of the grinding stone (a user side) is covered with a cover for preventing powder dust or the li...

Claims

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